What is this 3D Model?
The "eye-like" logo seems to be the one from Blenderguru. Doing a reverse image search on Google, it seems that it has first been published by Greg Zaal for the Cycles Shader Encyclopedia.

I don't think you should use it, since the logo might be copyright protected. For blender users, the Blender ape "Suzanne" is often used for demonstration purposes. You can create it by "Add/Mesh/Monkey".